this is really gross, but today I had pale yellow poop..Ive never seen anything like that before. Ive had mono for the past three weeks, but my doctor didnt really tell me anything about it..could that be the cause? Im kind of worried, because ive had weird stomach swelling (like bulging on the bottom left side of my stomach) is there a chance that there is something wrong with the inside of my stomach? or am I just being paranoid?